Home / 167,393.11-231,053.69-99,421.15

Finding the Fourth Proportional to 167,393.11, 231,053.69 and 99,421.15

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Solution

The fourth proportional to 167,393.11, 231,053.69 and 99,421.15 is: 137,231.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,393.11 : 231,053.69 = 99,421.15 : x
  2. Step 2: Convert to fraction form
    167,393.11/231,053.69 = 99,421.15/x
  3. Step 3: Cross multiply
    167,393.11x = 231,053.69 × 99,421.15
  4. Step 4: Simplify right side
    167,393.11x = 22,971,623,571.54
  5. Step 5: Solve for x
    x = 22,971,623,571.54/167,393.11
  6. Step 6: Final answer
    x = 137,231.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.